@book{ia,
  title={{Artificial intelligence}},
  author={Winston, P.H.},
  year={1984},
  publisher={Addison-Wesley Longman Publishing Co., Inc. Boston, MA, USA}
}

@article{rainhas,
  title={{Eight queens puzzle}},
  author={Wikipedia},
  journal={At http://en.wikipedia.org/wiki/Nqueens},
  year={2008}
}

@article{caixeiro,
  title={{Travelling salesman problem}},
  author={Wikipedia},
  journal={At http://en.wikipedia.org/wiki/Traveling_salesman_problem},
  year={2008}
}

@book{python,
  title={{Programming Python}},
  author={Lutz, M. and Lewin, L. and Willison, F.},
  year={2001},
  publisher={O'Reilly Sebastopol, CA}
}

@article{aima,
  title={{Aima project}},
  author={Google Code},
  journal={At http://code.google.com/p/aima-java/},
  year={2008}
}

@article{cycle,
  title={{A Study of Permutation Crossover Operators on the Traveling Salesperson Problem}},
  author={Oliver, IM and Smith, DJ and Holland, JRC},
  journal={Proceedings of the 2 ndInternational Conference on Genetic Algorithms and their Applications},
  pages={224--230}
}

@article{SUS,
  title={{Reducing bias and inefficiency in the selection algorithm}},
  author={Baker, J.E.},
  journal={Proceedings of the Second International Conference on Genetic Algorithms on Genetic algorithms and their application table of contents},
  pages={14--21},
  year={1987},
  publisher={Lawrence Erlbaum Associates, Inc. Mahwah, NJ, USA}
}